Tissue toning is something I have only done briefly before this lecture, and not one I had had any instruction in. Having previously had a thorough introduction into pulp repairs with Alan Buchanan, this particular process of toning tissue seemed to make a lot more sense than perhaps it had done previously.
It was necessary to learn to and tone tissue in order to move ahead with our board attachment lectures. The use of japanese tissue is now essential in the repair of books and paper, and has more strength than one might imagine, indeed a hinge repair in japanese tissue is often enough to hold a board onto a book for the foreseeable future, though to look at it, it almost seems impossible.
The technique for this tissue toning, was to create a colour pallet similar to the colours of the book cover in question. This was done using different acrylic colours, such as burnt umber and ocre, these can be mixed on a sheet of melinex as an artists pallet is. Once the desired colour is reached, the pigment is then dabbed onto the tissue using a damp piece of cotton wool. This means that it is possible to get a meddly of colours on the tissue.
Personally I was not so enamoured with this particular method. I found both the cotton wool and the tissue would soak up the pigment too quickly to get good coverage, and the tissue ended up looking too patchy and the fibres of the tissue would become damaged and fragile.
An alternative method, which I personally prefer, is to make up a pallet of liquid colour in a relatively large quantity. Then the tissue is dipped into the liquid pigment. This way the colour is more consistent and will cover a larger area. It also does not put any strain on the tissue fibres, meaning they retain their strength. Once one tissue is toned, it is possible to add water to the pallet and get a lower percentage of pigment on another sheet, and so on until the pigment is gone and the tissue toning is quite pale.
The negative is that it is important to get the right colour before you go ahead and tone the sheet, whereas in the former method, more colour can be added to get the toning correct. In both methods, colour can be added to the tissue once it has been added to the book to blend in the tissue. This is often done with black.
An alternative method, which I have yet to test, is using a spray gun to cover the tissue in the pigment. This should get a maximum coverage of pigment onto the tissue with a minimum effect or damage to the tissue.